Use food-grade materials and add your coffee according to your favorite flavor. There are 4 cups with different capacities, which can be selected according to different personnel. The cup body code is different, and the amount of water recognized by the coffee machine is different. You can choose according to your needs. Add coffee powder and align the edges of capsules with foil paper. Press the foil by hand to make it close to the capsule. Coffee capsule shell is suitable for home, kitchen, restaurant, office and so on. Item Name: Coffee Capsule Shell Material: Aluminum Foil Features: Versatile, Convenient, Durable, Food-Grade Size Details: Size: 5.9cm x 4.6cm x 3.4cm/2.32" x 1.81" x 1.34" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 12 x Coffee Capsule Shell 36 x Self-adhesive Aluminum Foil